Respuesta :

[tex]\huge \bf༆ Answer ༄[/tex]

As we know the relationship between frequency, wavelength and wave speed , we can infer that : -

[tex] \sf \: f = \dfrac{ v}{λ} [/tex]

Terms in the formula

  • f = frequency

  • v = wave speed = 3 × 10⁸ m/s

[ v of all electromagnetic waves is 3 × 10⁸ m/s]

  • λ = wavelength = 3 × 10⁵ km

  • λ = 3 × 10⁵ × 10³ m

  • λ = 3 × 10⁸ m

Time to find the frequency : -

  • [tex] \sf \: f = \dfrac{3 \times 10 {}^{8} }{3 \times 10 {}^{8} } [/tex]

  • [tex] \sf \: f = 1 \: sec {}^{ - 1} or \: hertz[/tex]

[tex]꧁  \:  \large \frak{Eternal \:  Being } \: ꧂[/tex]